Thirty-day field tests of industrial boilers: site 4 - coal-fired spreader stoker. Final report, March 1979-March 1980

Technical Report · Tue Apr 01 04:00:00 EST 1980

OSTI ID:6553971

Carter, W A; Hart, J R

This is a final report for a test program to evaluate the long-term effectiveness of combustion modifications on industrial boilers. Previous short-term tests had been performed on industrial boilers to determine the effect of combustion modifications on such air pollutant emissions as NOx, SOx, CO, HC, and particulate. The objective of this program was to determine if the combustion modification techniques which were effective for the short-term tests are feasible for longer periods. The report gives result of a 30-day field test of a 38.1 MW (130,000 lb steam/hr) output coal-fired spreader stoker. Low excess air was used to control NOx emissions. Results indicate that low excess air firing is an effective long-term NOx control for spreader stokers. The as-found NOx concentration was 240 ng/J (409 ppm at 3% O2, dry) with the boiler load art 80% of design capacity. Firing in the low excess air mode reduced the as-found condition by about 19%. Low excess air firing also increased efficiency by about 1.2% and decreased particulates by about 22%.

• Research Organization: KVB, Inc., Irvine, CA (USA)
• OSTI ID: 6553971
• Report Number(s): PB-80-219520
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
BOILERS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION PRODUCTS
ENERGY SOURCES
FIELD TESTS
FLUE GAS
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
GASEOUS WASTES
HYDROCARBONS
INDUSTRIAL PLANTS
INDUSTRIAL WASTES
MATERIALS
MODIFICATIONS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PERFORMANCE TESTING
POLLUTION CONTROL
RETROFITTING
STOKERS
SULFUR COMPOUNDS
SULFUR OXIDES
TESTING
THERMOCHEMICAL PROCESSES
WASTES